In Brazil, the food industry generates every year huge amounts of avian eggshell waste, and a critical question is to find an adequate use for this waste. The aim work determine chemical, mineralogical physical characteristics nonprocessed waste sample, as well investigate its in wall tile paste. sample was analyzed regarding chemical composition, X-ray diffraction, morphology, particle size analysis, density, organic matter, soluble salts, thermal analysis. results indicated that rich CaCO3...

The food processing industry generates large amounts of eggshell waste worldwide. is rich in calcium carbonate (CaCO 3 ), and considered to be a solid material very complex difficult final disposal. This work investigates the reuse as an alternative raw into soil–cement brick body, replacing cement by up 30 wt%. Soil–cement bricks are uniaxially pressed cured for 28 days. technological properties (e.g. apparent density, water absorption compressive strength) then determined. results show...

In Brazil, the sugarcane industry generates large amounts of bagasse ash, and a key issue is to find proper use this solid waste material. The aim study determine chemical, physical mineralogical characteristics ash sample from south-eastern investigate its in production ceramic floor tile. material was analyzed regarding chemical composition, analysis, particle size distribution, morphology, density, organic matter. Floor tile pieces containing up 2.5 wt% as partial replacement quartz were...

The water treatment plants generate large amounts of municipal sludge that must be discarded. A crucial issue is to find an ecological destination for its final disposal. This work studies the possibility incorporating plant waste into soil-cement bricks civil construction. sample this material was analyzed chemical composition, X-ray diffraction, particle size, plasticity, and organic matter. Mixtures containing up 5 wt.% as a partial substitute soil were pressed cured 28 days. effects...

In petroleum extraction industry large amounts of oily sludge have to be discarded. This waste is usually considered difficult final disposal, causing economical and environmental problems. work reports on the re-use for manufacturing red ceramic product used in civil construction. Ceramic pieces containing up 30 wt.% were uniaxially pressed fired at temperatures ranging from 800 °C 1000 °C. The technological properties (linear shrinkage, water absorption, apparent density, compressive...

Abstract This work reports a study on the effects of firing temperature technical properties clay ceramic incorporated with blast furnace sludge (BFS) waste. For this, three pastes were formulated, partially replacing plastic up to 10 wt.% BFS The pieces shaped by pressing and fired in muffle between 900 ºC 1100 ºC. effect was evaluated monitoring linear shrinkage, water absorption, apparent porosity, density, flexural strength. waste consists mainly iron oxide (Fe2O3) coke fines. It also...

The ornamental stone industry generates a huge amount of marble waste around the world, which requires sustainable disposal. This investigation aimed to synthesize new biphasic calcium phosphate-magnesium phosphate bioceramic using as an alternative carbonate precursor. was synthesized wet chemical precipitation method in different Ca/P ratios. After synthesis step, resulting powders were characterized terms X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric...

This work presents the results of a study on suitability clayey materials from Campos-RJ (Brazil) region for application in structural ceramic. The materials, i.e. red clays available this region, were selected so that their characteristics regarding chemical composition, rational analysis, X-ray diffraction, particle size thermal behavior, plasticity and as dried fired properties could be studied. revealed studied samples are typically kaolinite based materials. In addition, it was found...

Fish bone is rich in calcium carbonate, which makes it an alternative source of low cost carbonate for the synthesis phosphate bioceramic use regeneration. The was prepared by a wet precipitation method with acid and base reactions. synthesized characterized terms X-ray diffraction (XRD), scanning electron microscopy (SEM/EDS), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTRI), average crystallite size refinement Rietveld quantification crystalline phases....

Marble waste is produced on a large scale in many countries, resulting serious pollution problems. This investigation aimed to study the valorization potential of marble from ornamental rock industry used synthesis novel calcium niobate–magnesium niobate composite powder prepared by solid-state reaction between 1000 °C and 1200 °C. The chemical mineralogical characteristics were determined. Structural morphological characterizations synthesized powders conducted X-ray diffraction (XRD),...

In ornamental rock industry large amounts of wastes in the form powder have to be discarded. The reuse rock-cutting waste produce floor tiles for civil construction is described. was added gradually up 47.5 wt.%. tile manufacturing route consisted dry preparation, uniaxial pressing at 50 MPa, and sintering between 1190 1250 °C using a fast-firing cycle. development microstructure followed by XRD SEM. technological properties (linear shrinkage, apparent density, water absorption, flexural...

O objetivo deste trabalho foi utilizar um resíduo de serragem granito, proveniente da indústria pedras ornamentais do estado Espírito Santo, como aditivo na fabricação produtos cerâmicos para construção civil. Este é material não biodegradável que quando descartado gera poluição e degrada o meio ambiente. Assim, uma amostra selecionada modo suas características com respeito a composição química, difração raios X, análise tamanho partícula, massa específica real plasticidade pudessem ser...

Abstract Calcium pyrophosphate (CPP) was prepared by a simple precipitation method using avian eggshell waste as low-cost alternative calcium precursor source. The synthesized CPP powder characterized X-ray diffraction (XRD), scanning electron microscopy (SEM/EDS), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR). results indicate that pure β-CPP nanocrystallites (Ca/P = 1.067) were successfully from waste. correlation among XRD, SEM/EDS, TGA, FTIR data is...